Vehicle drive device

Abstract

To provide a vehicle drive device which enables detection signals of a temperature sensor and a resolver to be output to the outside of a housing while avoiding local concentration of a plurality of harnesses to simplify the layout without adopting a hollow shaft structure.SOLUTION: A vehicle drive device 1 includes a motor housing 10 which houses a temperature sensor 3 and a resolver 4, a cover member 20, a temperature sensor harness 3a, and a resolver harness 4a. The cover member 20 is formed with a window part 21a through which the temperature sensor harness 3a passes and attached with a temperature sensor connector 3b which enables connection of a first external harness 301. The temperature sensor harness 3a is connected to the temperature sensor connector 3b. The motor housing 10 is attached with a resolver connector 4b which enables connection of a second external harness 303. The resolver harness 4a is connected to the resolver connector 4b.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a vehicle drive device mounted on a vehicle. [Background technology]

[0002] For example, Patent Document 1 discloses a vehicle equipped with a motor that drives the wheels. The motor in Patent Document 1 is an in-wheel motor built into the wheel hub, and includes a hollow shaft that rotates together with the rotor and a sensor that detects the rotational position of the rotor. The sensor harness is passed through the hollow shaft and extends to the outside of the motor, and then connected to a control board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7083298 Summary of the Invention [Problem to be solved by the invention]

[0004] The internal temperature and rotational state of a motor are used as part of the information required to control the motor. Since it is desirable to detect the internal temperature of the motor as accurately as possible, a temperature sensor must be installed inside the housing that houses the motor. Installing the temperature sensor inside the housing also makes it possible to protect the temperature sensor from external environmental factors such as water and dust, which is thought to reduce the occurrence of problems such as deterioration over time. There is also a demand to install the resolver used to detect the rotational state of the motor inside the housing to protect it from the external environment.

[0005] If the temperature sensor and resolver are disposed inside the housing, the harnesses extending from the temperature sensor and resolver must be drawn to the outside of the housing. In this regard, in Patent Document 1, the sensor harness is passed through a hollow shaft and extended to the outside, but if it is difficult to adopt such a hollow shaft structure, how to draw the harness to the outside of the housing becomes a problem. In particular, since the temperature sensor and resolver are disposed in locations distant from each other, it may be difficult to achieve a layout in which the temperature sensor harness and the resolver harness are both passed through the hollow shaft of Patent Document 1.

[0006] The present disclosure has been made in consideration of these points, and its purpose is to enable the detection signals of the temperature sensor and resolver to be output to the outside of the housing without adopting a hollow shaft structure and while avoiding the local concentration of multiple harnesses, making the layout easier. [Means for solving the problem]

[0007] To achieve the above object, one aspect of the present disclosure can be based on a vehicle drive device including a motor, a temperature sensor that detects the temperature state of the motor, and a resolver that detects the rotation state of the motor. The vehicle drive device includes a motor housing that accommodates the motor, the temperature sensor, and the resolver and is open on one side in the direction of the motor rotation axis, a cover member that covers the open portion of the motor housing from one side in the direction of the motor rotation axis, a temperature sensor harness having one end connected to the temperature sensor, and a resolver harness having one end connected to the resolver. The cover member has a window through which the temperature sensor harness passes, and a temperature sensor connector configured to allow connection of a first external harness is attached to the cover member so as to penetrate a portion away from the portion where the window is formed. The other end of the temperature sensor harness is connected to the temperature sensor connector. A resolver connector configured to allow connection of a second external harness is attached to the motor housing so as to penetrate the motor housing. The other end of the resolver harness is connected to the resolver connector.

[0008] According to this configuration, a temperature sensor harness connected to the temperature sensor passes through a window in the cover member and is connected to a temperature sensor connector attached to the cover member. A first external harness is connected to the temperature sensor connector, so that a detection signal from the temperature sensor can be input to, for example, a vehicle control unit via the temperature sensor harness, temperature sensor connector, and first external harness. A resolver harness connected to the resolver is connected to a resolver connector attached to the motor housing. A second external harness is connected to the resolver connector, so that a detection signal from the resolver can be input to, for example, a vehicle control unit via the resolver harness, resolver connector, and second external harness.

[0009] By providing the temperature sensor connector and resolver connector in this way, it is possible to input the detection signals of the temperature sensor and resolver to the control unit without employing a hollow shaft structure as in conventional examples. Also, because the temperature sensor connector and resolver connector each pass through separate members, namely the cover member and the motor housing, the connectors and harnesses are not concentrated in one area, making the layout easier compared to when both connectors are attached so that they pass through a single member.

[0010] The cover member may have a cover-side vertical wall portion extending radially of the motor rotary shaft so as to cover the open portion of the motor housing, and a cover-side peripheral wall portion protruding in the motor rotary shaft direction from a peripheral edge of the cover-side vertical wall portion and extending circumferentially of the motor rotary shaft. In this case, the window portion may be formed in the cover-side vertical wall portion, and the temperature sensor connector may be attached to the cover-side peripheral wall portion so as to pass through the cover-side peripheral wall portion.

[0011] Furthermore, the temperature sensor and the resolver can be disposed at a distance from each other in the direction of the motor rotation shaft. For example, the temperature sensor can be housed inside the motor housing on a side closer to the cover-side vertical wall portion, and the resolver can be housed inside the motor housing on a side opposite the cover-side vertical wall portion. When the temperature sensor and the resolver are disposed at a distance from each other in the direction of the motor rotation shaft, it is difficult to pull out the temperature sensor harness and the resolver harness from the same location. However, by attaching connectors to the motor housing and the cover member, respectively, as in this embodiment, it is possible to easily route the temperature sensor harness and the resolver harness when the temperature sensor and the resolver are disposed at a distance from each other in the direction of the motor rotation shaft.

[0012] The motor housing may have a housing-side vertical wall portion extending in a radial direction of the motor rotary shaft, and a housing-side peripheral wall portion protruding in the motor rotary shaft direction from a peripheral edge of the housing-side vertical wall portion, extending in the circumferential direction of the motor rotary shaft, and coupled to the cover member. In this case, the resolver connector can be attached to the housing-side peripheral wall portion so as to penetrate through the housing-side peripheral wall portion.

[0013] The side of the temperature sensor connector to which the first external harness is connected and the side of the resolver connector to which the second external harness is connected may face the same direction, thereby enabling the first external harness and the second external harness to be connected to the temperature sensor connector and the resolver connector from the same direction, thereby improving workability and efficiency during connection. [Effects of the Invention]

[0014] As described above, it is possible to output the detection signals of the temperature sensor and resolver to the outside of the housing without employing a hollow shaft structure and while avoiding local concentration of multiple harnesses to facilitate layout. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of a vehicle drive device as seen from the front. [Figure 2] FIG. 2 is a front view of the vehicle drive device. [Figure 3] FIG. 3 is a diagram showing a cross section taken along line III-III in FIG. [Figure 4] FIG. 4 is a perspective view of the right cover member and the motor housing separated from each other, viewed obliquely from above on the left. [Figure 5] FIG. 5 is a perspective view of the right cover member and the motor housing separated from each other, as viewed from diagonally above right. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the present invention, its applications, or its uses.

[0017] 1 and 2 show a vehicle drive system 1 according to an embodiment of the present invention. The vehicle drive system 1 is mounted on an automobile (not shown) and is a device for driving the drive wheels of the automobile. The automobile may be an electric automobile that runs solely on the power of a motor, or a hybrid automobile that runs using the power of both an internal combustion engine (engine) and a motor. The motor that generates the power to drive the drive wheels is a drive motor. The hybrid automobile may also be a plug-in hybrid that can be charged from an external power source. In this embodiment, a hybrid automobile will be described as the automobile equipped with the vehicle drive system 1. Therefore, as shown in FIG. 3, the automobile equipped with the vehicle drive system 1 also includes a drive battery 100 for supplying power to the motor 2, a control unit 200 for controlling the motor 2, and the like. However, these are well known and therefore will not be described in detail. The control unit 200 includes an inverter circuit and the like.

[0018] The vehicle drive device 1 is mounted, for example, in the engine compartment of an automobile. The engine compartment may be located in the front or rear of the automobile. As shown in each drawing, the front-rear direction and the left-right direction are defined. That is, based on the state in which the device is mounted in the engine compartment of the automobile, the side that is the front of the vehicle will be simply referred to as the front, the side that is the rear of the vehicle will be simply referred to as the rear, the side that is the left side of the vehicle will be simply referred to as the left, and the side that is the right side of the vehicle will be simply referred to as the right. The left-right direction is the vehicle width direction. These definitions of directions are provided merely for the convenience of explaining the embodiments and do not limit the present invention.

[0019] As shown partially in phantom lines in FIG. 2, an engine E is disposed to the right of the vehicle drive device 1 in the engine room. The crankshaft (not shown) of the engine E extends in the left-right direction, and the engine E is a so-called transversely mounted engine. The engine E and the vehicle drive device 1 are aligned side by side in the left-right direction, with the vehicle drive device 1 disposed on the left side of the engine E, and the left portion of the engine E and the right portion of the vehicle drive device 1 connected by a fastening member (not shown). Power output from the crankshaft of the engine E is input to the vehicle drive device 1. Note that the left-right positions may be reversed, and the direction in which the engine E and the vehicle drive device 1 are aligned is not particularly limited. In the case of an electric vehicle, the engine E is not mounted, so the engine room is called a motor room.

[0020] FIG. 3 is a diagram showing a schematic cross section of the vehicle drive device 1. As shown in FIG. 3, the vehicle drive device 1 includes a motor 2, a temperature sensor 3 that detects the temperature state of the motor 2, and a resolver 4 that detects the rotation state of the motor 2. As shown in FIG. 4, the motor 2 has a stator 2a and a rotor 2b (only part of the outer periphery is shown by a virtual line). The axis of the rotation shaft of the motor 2 (motor rotation shaft) is indicated by the symbol B in FIG. 2. The vehicle drive device 1 is mounted on the automobile so that the direction of the motor rotation shaft is the left-right direction. Therefore, the axis of the crankshaft of the engine E and the direction of the motor rotation shaft coincide with each other.

[0021] The temperature sensor 3 is configured with, for example, a thermistor and is disposed in a location close to, for example, the stator 2a of the motor 2 so that it can immediately detect temperature changes in the stator 2a. The temperature sensor 3 constantly outputs a detection signal. The resolver 4 is a rotation angle detection sensor that detects the rotation angle of the rotor 2b. The temperature sensor 3 and the resolver 4 may be conventionally known.

[0022] The vehicle drive device 1 further includes a motor housing 10, a right cover member 20, and a left cover member 30. The motor housing 10, the right cover member 20, and the left cover member 30 are each made of a light alloy such as an aluminum alloy, and are highly rigid members. In this embodiment, the right cover member 20 and the left cover member 30 are located on the right and left sides, respectively, and are therefore named as such, but this is not limiting, and the right cover member 20 may also be called a front cover member, and the left cover member 30 may also be called a rear cover member. The right cover member 20 is a first cover member, and the left cover member 30 is a second cover member.

[0023] The motor housing 10, the right cover member 20, and the left cover member 30 constitute a single case A. The right cover member 20 is located on the right side of the case A and constitutes the right portion of the case A, so the right cover member 20 can also be called the right-side component member. The left cover member 30 is located on the left side of the case A and constitutes the left portion of the case A, so the left cover member 30 can also be called the left-side component member. The motor housing 10 is located between the right cover member 20 and the left cover member 30 and constitutes the left-right intermediate portion of the case A, so the motor housing 10 can also be called the intermediate component member. The motor housing 10 is sandwiched between the right cover member 20 and the left cover member 30 in the left-right direction. The structure of the case A is not limited to the above-described structure and may include additional components.

[0024] The motor housing 10 defines a single accommodation space R (shown in FIG. 3). The motor 2, temperature sensor 3, and resolver 4 are accommodated in this single accommodation space R. The motor housing 10 has a housing-side vertical wall portion 11 and a housing-side peripheral wall portion 12, which are integrally molded. The housing-side vertical wall portion 11 is located at the left end of the motor housing 10 and is an end wall portion extending in the radial direction (up-down and front-rear directions) of the motor rotary shaft. The housing-side peripheral wall portion 12 is an annular wall portion that protrudes rightward along the motor rotary shaft direction from the peripheral edge of the housing-side vertical wall portion 11 and extends continuously in the circumferential direction of the motor rotary shaft. A housing-side fastening portion 12a that protrudes radially outward is formed at the tip (right end) of the housing-side peripheral wall portion 12. The housing-side fastening portion 12a is connected to the right cover member 20 by a fastening member (not shown).

[0025] The motor 2 is located inside the housing-side peripheral wall portion 12. An output combining mechanism (not shown) for combining the output of the engine E and the output of the motor 2 (the rotational force of the rotor 2b) is provided inside the rotor 2b (shown by an imaginary line in FIG. 4). The output combining mechanism is configured so that it can input only the output of the engine E to the subsequent transmission 50 (shown in FIG. 3), input only the output of the motor 2 to the transmission 50, or combine the output of the engine E and the output of the motor 2 in any ratio and input the combined output to the transmission 50. The structure of the output combining mechanism is not particularly limited, and a mechanism used in conventionally known hybrid vehicles can be applied. Conventionally known methods can also be used to control the output combining mechanism.

[0026] A housing-side vertical wall 11, which serves as an end wall, is located at the left end of the motor housing 10, but no end wall is formed at the right end of the motor housing 10, so the motor housing 10 has a structure with an open portion that is open to the right (one side in the direction of the motor rotation axis). Because the accommodation space R is open to the right of the motor housing 10, this open portion of the motor housing 10 is covered from the right by a right cover member 20.

[0027] The right cover member 20 has a right cover-side vertical wall portion 21 and a right cover-side peripheral wall portion 22. The right cover-side vertical wall portion 21 and the right cover-side peripheral wall portion 22 are integrally molded. The right cover-side vertical wall portion 21 is located at the left end of the right cover member 20 and is an end wall portion that extends in the radial direction (up-down and front-rear directions) of the motor rotary shaft so as to cover the open portion of the motor housing 10. The housing-side fastening portion 12a is coupled to the right cover-side vertical wall portion 21 to close the open portion of the motor housing 10.

[0028] The right cover-side peripheral wall portion 22 is an annular wall portion that protrudes in the motor rotation shaft direction from the peripheral edge portion of the right cover-side vertical wall portion 21 and extends continuously in the circumferential direction of the motor rotation shaft. A right cover-side fastening portion 22a that protrudes radially outward is formed at the tip end (right end) of the right cover-side peripheral wall portion 22. The right cover-side fastening portion 22a is connected to the engine E by a fastening member (not shown).

[0029] The left cover member 30 is attached to the side opposite the open portion (left side) of the motor housing 10, and has a left cover-side vertical wall portion 31 and a left cover-side peripheral wall portion 32. The left cover-side vertical wall portion 31 and the left cover-side peripheral wall portion 32 are integrally molded. The left cover-side vertical wall portion 31 is located at the left end of the left cover member 30, and is an end wall portion that extends in the radial direction (up-down and front-rear directions) of the motor rotary shaft.

[0030] The left cover-side peripheral wall 32 is an annular wall that protrudes in the direction of the motor rotation shaft from the peripheral edge of the left cover-side vertical wall 31 and extends continuously in the circumferential direction of the motor rotation shaft. A left cover-side fastening portion 32a that protrudes radially outward is formed at the tip (right end) of the left cover-side peripheral wall 32. The left cover-side fastening portion 32a is connected to the housing-side vertical wall 11 of the motor housing 10 by a fastening member (not shown).

[0031] A transmission 50 is housed inside the left cover side peripheral wall portion 32. The rotational force output from the output combining mechanism housed in the motor housing 10 is input to the transmission 50, where it is slowed down or accelerated before being output. The output of the transmission 50 is transmitted to the drive wheels via a final gear, a drive shaft, etc., which are not shown.

[0032] The temperature sensor 3 and the resolver 4 are disposed at a distance from each other in the direction of the motor rotation axis. The temperature sensor 3 is housed inside the motor housing 10 on the side closer to the right cover vertical wall portion 21, and in this embodiment, is fastened and fixed to the right cover vertical wall portion 21. The resolver 4 is housed inside the motor housing 10 on the side opposite the right cover vertical wall portion 21, and in this embodiment, is fastened and fixed to the housing vertical wall portion 11. As a result, the temperature sensor 3 is housed on the right side of the accommodation space R, and the resolver 4 is housed on the left side of the accommodation space R.

[0033] The vehicle drive system 1 further includes a temperature sensor harness 3a having a base end (one end) connected to the temperature sensor 3, and a resolver harness 4a having a base end (one end) connected to the resolver 4. The temperature sensor harness 3a includes a signal line for transmitting a detection signal of the temperature sensor 3 to a control unit 200 disposed outside the case A. The resolver harness 4a includes a signal line for transmitting a detection signal of the resolver 4 to the control unit 200 disposed outside the case A.

[0034] A window 21a through which the temperature sensor harness 3a passes is formed in the right cover side vertical wall 21 of the right cover member 20. The window 21a is located radially outward of the stator 2a in the right cover side vertical wall 21 and is formed to penetrate the right cover side vertical wall 21 in the thickness direction (left-right direction). In this embodiment, the window 21a is located in the front portion of the right cover side vertical wall 21. The formation of the window 21a makes it possible to route the temperature sensor harness 3a from the inside of the motor housing 10 to the inside of the right cover member 20. The gap between the inner surface of the window 21a and the temperature sensor harness 3a can be sealed with a sealant.

[0035] A temperature sensor connector 3b is attached to the right cover-side peripheral wall 22 of the right cover member 20. That is, a connector mounting hole 22b penetrating the right cover-side peripheral wall 22 in the thickness direction is formed in the front portion of the right cover-side peripheral wall 22. The temperature sensor connector 3b is inserted into the connector mounting hole 22b and fixed to the right cover-side peripheral wall 22. That is, the temperature sensor connector 3b is attached to the right cover-side peripheral wall 22 so as to penetrate the right cover-side peripheral wall 22 at a location away from the location where the window 21a is formed.

[0036] The tip (other end) of the temperature sensor harness 3a is connected to the temperature sensor connector 3b. The temperature sensor connector 3b is configured to be connectable to the first external harness 301. The side of the temperature sensor connector 3b to which the first external harness 301 is connected faces forward.

[0037] The first external harness 301 includes a signal line for transmitting a detection signal from the temperature sensor 3 to the control unit 200. A first connector 302 that is connected to the temperature sensor connector 3b is provided at an end of the first external harness 301. The front portion of the temperature sensor connector 3b is the portion to which the first connector 302 is connected, and therefore the rear portion of the first connector 302 is the portion to which the temperature sensor connector 3b is connected. Either the temperature sensor connector 3b or the first connector 302 may be a female connector or a male connector.

[0038] For example, a socket can be formed in one of the temperature sensor connector 3b and the first connector 302 to make it a female connector, and a plug portion to be inserted into the socket can be formed in the other to make it a male connector. For example, if a socket is formed in the temperature sensor connector 3b, the orientation of the temperature sensor connector 3b can be determined so that the plug portion faces forward. In this case, the first connector 302 can be connected to the temperature sensor connector 3b by inserting the plug portion formed in the first connector 302 into the plug portion of the temperature sensor connector 3b from the front. Conversely, if a plug portion is formed in the temperature sensor connector 3b, the orientation of the temperature sensor connector 3b can be determined so that the plug portion protrudes forward.

[0039] A resolver connector 4b configured to allow connection of a second external harness 303 is attached to the motor housing 10 so as to penetrate the motor housing 10. That is, a connector mounting hole 12b is formed in the housing-side peripheral wall portion 12, penetrating the housing-side peripheral wall portion 12 in the thickness direction (radial direction). The resolver connector 4b is inserted into the connector mounting hole 12b and fixed to the housing-side peripheral wall portion 12. That is, the resolver connector 4b is attached to the motor housing 10 so as to penetrate a portion spaced apart in the left-right direction from the temperature sensor connector 3b.

[0040] The resolver connector 4b is connected to the tip end (other end) of the resolver harness 4a. The resolver connector 4b is configured to allow connection of a second external harness 303. The side of the resolver connector 4b to which the second external harness 303 is connected faces forward. Therefore, the side of the temperature sensor connector 3b to which the first external harness 301 is connected and the side of the resolver connector 4b to which the second external harness 303 is connected face in the same direction. Note that the side of the temperature sensor connector 3b to which the first external harness 301 is connected and the side of the resolver connector 4b to which the second external harness 303 is connected may face upward, downward, or rearward.

[0041] The second external harness 303 includes a signal line for transmitting a detection signal of the resolver 4 to the control unit 200. A second connector 304 is provided at an end of the second external harness 303 and connected to the resolver connector 4b. The front portion of the resolver connector 4b is connected to the second connector 304, and the rear portion of the second connector 304 is connected to the resolver connector 4b. Either the resolver connector 4b or the second connector 304 may be a female connector or a male connector. Similar to the temperature sensor connector 3b and the first connector 302, for example, one of the resolver connector 4b and the second connector 304 may be formed with a socket to be a female connector, and the other may be formed with a plug portion to be inserted into the socket to be a male connector. The first external harness 301 and the second external harness 303 may also be combined into a single wire outside the case A.

[0042] (Effects of the embodiment) As described above, according to this embodiment, the temperature sensor 3 that detects the temperature state of the motor 2 is provided inside the motor housing 10, so that the temperature state of the motor 2 can be accurately detected. The temperature sensor harness 3a connected to this temperature sensor 3 passes through the window 21a of the right cover member 20 and is connected to the temperature sensor connector 3b attached to the right cover member 20. The first external harness 301 is connected to the temperature sensor connector 3b, so that the detection signal from the temperature sensor 3 is input to the control unit 200 via the temperature sensor harness 3a, the temperature sensor connector 3b, and the first external harness 301.

[0043] Furthermore, the resolver harness 4a connected to the resolver 4 is connected to a resolver connector 4b attached to the motor housing 10. Since the second external harness 303 is connected to the resolver connector 4b, a detection signal from the resolver 4 can be input to, for example, the control unit 200 via the resolver harness 4a, the resolver connector 4b, and the second external harness 303.

[0044] Thus, by providing the temperature sensor connector 3b and the resolver connector 4b, it is possible to input the detection signals of the temperature sensor 3 and the resolver 4 to the control unit 200 without employing a hollow shaft structure as in the conventional example. Also, because the temperature sensor connector 3b and the resolver connector 4b penetrate the right cover member 20 and the motor housing 10, respectively, the connectors 3b, 4b and the harnesses 3a, 4a are not concentrated locally, compared to when both connectors 3b, 4b are attached so as to penetrate a single member, and the layout is easier. Also, there is no need to form through holes in the left cover member 30 to accommodate the connectors 3b, 4b.

[0045] The above-described embodiments are merely examples in all respects and should not be construed as limiting. Furthermore, all modifications and variations within the scope of the claims are within the scope of the present invention. [Industrial Applicability]

[0046] As described above, the vehicle drive device according to the present invention can be used in, for example, hybrid vehicles and electric vehicles. [Explanation of symbols]

[0047] 1 Vehicle drive unit 2 motors 3 Temperature Sensor 3a Temperature sensor harness 3b Temperature sensor connector 4 Resolver 4a Resolver harness 4b Resolver connector 10 Motor housing 20 Right side cover member 21 Right cover side vertical wall 21a Window section 22 Right cover side peripheral wall 301 First external harness 303 Second External Harness

Claims

1. A vehicle drive device including a motor, a temperature sensor that detects a temperature state of the motor, and a resolver that detects a rotation state of the motor, a motor housing that houses the motor, the temperature sensor, and the resolver and is open in one direction of the rotation axis of the motor; a cover member that covers the open portion of the motor housing from one side in the direction of the rotation axis of the motor; a temperature sensor harness having one end connected to the temperature sensor; a resolver harness having one end connected to the resolver, a window portion through which the temperature sensor harness passes is formed in the cover member, and a temperature sensor connector configured to be able to connect a first external harness is attached so as to pass through a portion away from the portion where the window portion is formed; the other end of the temperature sensor harness is connected to the temperature sensor connector; a resolver connector configured to be connectable to a second external harness is attached to the motor housing so as to pass through the motor housing; The other end of the resolver harness is connected to the resolver connector.

2. 2. The vehicle drive system according to claim 1, the cover member has a cover-side vertical wall portion extending in a radial direction of the motor rotary shaft so as to cover an open portion of the motor housing, and a cover-side peripheral wall portion protruding in the motor rotary shaft direction from a peripheral edge portion of the cover-side vertical wall portion and extending in the circumferential direction of the motor rotary shaft, The window portion is formed in the cover-side vertical wall portion, The temperature sensor connector is attached to the cover-side peripheral wall portion so as to pass through the cover-side peripheral wall portion.

3. 3. The vehicle drive system according to claim 2, The vehicle drive device, wherein the temperature sensor and the resolver are disposed at an interval in the direction of the motor rotation axis.

4. 4. The vehicle drive system according to claim 3, The temperature sensor is accommodated inside the motor housing on a side closer to the cover-side vertical wall portion.

5. 5. The vehicle drive system according to claim 4, The resolver is accommodated inside the motor housing on a side opposite to the cover-side vertical wall portion.

6. 6. The vehicle drive system according to claim 5, the motor housing has a housing-side vertical wall portion extending in a radial direction of the motor rotation shaft, and a housing-side circumferential wall portion protruding in the motor rotation shaft direction from a peripheral edge of the housing-side vertical wall portion, extending in the circumferential direction of the motor rotation shaft, and being connected to the cover member; The vehicle drive device, wherein the resolver connector is attached to the housing-side peripheral wall portion so as to pass through the housing-side peripheral wall portion.

7. 7. The vehicle drive system according to claim 6, A vehicle drive device, wherein the side of the temperature sensor connector to which the first external harness is connected and the side of the resolver connector to which the second external harness is connected face in the same direction.

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